Dr. Meisam Shirzad has graduated from Tehran University of Medical Sciences (TUMS) as a medical doctor (M.D.) (2004). He also received his Ph.D. degree in traditional Persian Medicine from TUMS in 2012. He is Assistant Professor of Persian Medicine, School of Persian Medicine, and Tehran University of Medical Sciences in Iran. He had leaded several international events in Austria and Iran about lifestyle modification and Persian medicine, nutrition (food and drink) and GI & liver diseases, and principels of Persian Medicine. His field of interest is gastrointestinal disorders. He is writer of several scientific books and articles in the field of Persian medicine. He is member of editorial board of journal of Traditional Medicine Research and Medical History Journal.